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Finding the Fourth Proportional to 5,661.78, 8,489.94 and 2,373.99

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Solution

The fourth proportional to 5,661.78, 8,489.94 and 2,373.99 is: 3,559.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,661.78 : 8,489.94 = 2,373.99 : x
  2. Step 2: Convert to fraction form
    5,661.78/8,489.94 = 2,373.99/x
  3. Step 3: Cross multiply
    5,661.78x = 8,489.94 × 2,373.99
  4. Step 4: Simplify right side
    5,661.78x = 20,155,032.66
  5. Step 5: Solve for x
    x = 20,155,032.66/5,661.78
  6. Step 6: Final answer
    x = 3,559.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.